Objects in the image:
category: person
category: backpack
category: bicycle
category: person
category: person
category: person
category: backpack
category: handbag
category: person

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Is he riding the bike?
a: No
q: Is he wearing helmet?
a: No
q: Is it the person with green backpack?
a: Yes